Medical navigation instrument



FIG. 1 is a front perspective view of a medical navigation instrument according to the present invention.

FIG. 2 is a left side elevation view of thereof;

FIG. 3 is a right side elevation view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a front elevation view thereof; and,

FIG. 7 is a rear elevation view thereof. 

CLAIM The ornamental design for a medical navigation instrument, as shown and described. 